For more than forty years, the U.S. government has researched extrasensory perception, using it in attempts to locate hostages, fugitives, secret bases, and downed fighter jets; to divine other nations' secrets; and even to predict future threats to national security. The intelligence agencies and military services involved include the CIA, DIA, NSA, DEA, the Navy, Air Force, and Army--and even the Joint Chiefs of Staff. Now, for the first time, Jacobsen...